Ignition system.



G. L. LANG. IGNITION SYSTEM. APPLICATION FILED DEC.27, 1,915-

Patented Feb. 25, 1919.

To DIST?! BUT'OE INVENTOR. BGEOIQGE L LANG.

y W 2. ATTORNEY.

WITNESSES :%Q/ avot/ J UNITED STATES PATENT orrmnp GEORGE I1. LANG, OF NEWARK, NEW JERSEY, ASSIGN'OR TO SPLI'IDORF ELECTRICAL COMPANY, OF NEWARK, NEW JERSEY. I

IGNITION s Ys'rEi/i.

1,295,528 7 Specification of Letters Iatent.

Application filed December 27, 1915. Serial No. 68,688

operates after the main circuit breaker and consequently at a more retarded position.

Other and further objects of my invention will be apparent to any one skilled in the art after a study of this specification taken 111 connection with the drawing in which Figure 1 is a diagrammaticview of the apparatus and circuits used in. my improved system. Fig. 2"is a partial sectional view through the breaker box on the line 22, but showing the parts of the main and auxiliary circuit breaker in elevation. Fig; 3 is an end view of the breaker box cover.

Referring now particularly to the drawings, 1 illustrates a breaker box having an advance lever 2. Mounted on the interior of the breaker box l'is an insulated con-tact block 3 which carries the contact screw 4 that is locked in place on the block 3-by screw 5. A breaker-arm 6 is pivoted at 7 on the breaker box. 6 carries a friction wearing a's fiber. Also a contact 9 which is adapted to cooperate with the contact screw 4.

To all whom it may concern Be it known that I, GEORGE L. LANG, a citizen of the United States, residing at Newark, in the county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Ignition Systems, of which the following is a specification.

In starting internal combustion engines it is essential that the ignition sparks be obtained at low rotative-speeds of the engine. This is particularly necessary Where the grade of fuel is .low or, the engine large, such as those used for the heavier classes of stationary work.

It has been found that a magneto gives the highest grade of service in the matter of furnishing ignition for such engines after they have been started, but on account of the low rotative speed in starting, the magneto is somewhat deficient in its function of producing sparks for burning the poor mixtures that usually are obtained at the time of starting. 1

"It is the object of my invention to overcome this difliculty by providing a means of obtaining sparks, no matter how slow the rotative speedbf the engine is, while at the same time the magneto is used for producing the sparks after the engine has been started.

In order to accomplish the objects of my invention I provide a vibrator wired in circuit with a battery, which may be the battery that furnishes current for the starting motor which cranks the engine, as is common practice on automobiles, and an aux1liary circuit breaker which is used 1n conjunction with the main circult breaker, and I a switch for throwing the battery vlbrator the element 8 dlrectly after'the cam 11 and auxiliary circuit breaker into circuitstrikes element 8 Attached to the breaker with the primary of the armature of a h1gh box 1, but nsulated therefrom, is a second tension magneto of the Siemens type, or stud 15 which carriesacontaet'2l adapted through the primary of the coil of the into. engage contact 22 on'resilient member 19.

ductor type. The studs 14 an%5 pass through insulating It sometimes happens that the operator bushings 24: in breaker box cover '23 when forgets to retard the spark in stopping-his the same is in osition on the breaker box engine, and should the. engine be again 1, so that .electrlcal connection to these two started on "the vibrator if connected distuds can be made on the exterior of the rectly to the primary of the armature or* breaker box cover 23 by means of contact coil, as is sometimes done, a back kick might nuts 27, shown in Flg. 2.

result. contact fastened to the center of the breaker One of the objects of my invention to box cover, and when the said cover is in poovercome this difliculty; by arranging my auxiliary circuit breaker so that 1t a ways 6 after the same has been operated by cam A spring 13 passes across the front of the cam 11 and over the pivot pin 7 for the purpose of holding the breaker arm 6in position ,on its bearing. Attached to the breaker box 1 is a stud 14, but insulated therefrom by the bushing 16 and insulators 17. Mounted on this insulated stud li is a block 18 to which is attached a resilient member 19. The 20 that extends over the friction wearing element 8, and is adapted to be moved by sition on the on the interior ofthe cover extendingcon The movable breaker arm element 8, such Spring 10 is used to return the breaker arm block 18 has a projection 25 is an insulated box a springf26 makes contact Patented Feb. 25, 1919., 4

11 that is mounted on the magneto shaft 12. p

lot

nection from the contact 25 to the contact block .3. The cover 23 is held on to the breaker box by a spring attache-d to an insulated stud on the magneto, one end of which spring rests against the outside end of the contact button 25. For the sake of clearness this spring which holds the breaker box 23 in position is not shown.

P illustrates the primary winding of a coil, and Sxthe secondary thereof. These coil-s may be included on the rotating armature, as in the Siemens type of high tension magneto, or they may be on a stationary structure, as in the inductor type of magneto. v It is understood that the outside terminal of the secondary is connected to a distributer for the purpose of distributing the sparks to the proper cylinders of the engine. V is a vibrator of any suitable type, to which is connected the battery B that may be grounded on one side, as at G. 28 illustrates diagrammatically a switch for the purpose of switching the vibrator into circuit, as heretofore mentioned, or for switching the magneto to the off or on position. As indicated the switch has three positions. M for the magneto, OFF for the non-running position, and B for battery position.

I will now describe the operation of my system.

Suppose it would be desirable to start the engine. The switch 28 is thrown to position B and'the segment 32 will make contact 'between the studs 29 and 30. Let

of the magneto little or no spark is pro-" duced in the engine cylinder, it being understood that the circuit breaker lever 6 is connected directly to the frame work of the magneto which is grounded whereby the primary winding of the coil is connected to ground at one end through the through. the primary winding of the coil to -ground.;

The vibrator will begin to operate, send- -a"strong current through the primary lie-coil, causing a' shower of sparks to "tefromthe spark plug in the engine cyliiider'having as to be fired. when the BIS-"engine starts the switch segment 32 is it be assumed that the cam 11 has hit the circuit breaker in the usual manner, andto the off position so that segment 32 crosses the contacts 30 and 31 which grounds the free end of the primary winding of the coil direct thus shuntingthe circuit breaker, and no sparks are produced.

""It is to be noted that the main circuit breaker, which produces the sparks under normal running conditions of the magneto, operates in advance of the auxiliary circuit breaker, which is used primarily for starting on battery, although by moving the advance lever sufliciently far, the engine can be operated by the vibrator or by the magneto and vibrator acting one after the other. That is, should the magneto spark proper, as produced by the main circuit breaker, fail to ignite the gas, the auxiliary breaker producing sparks succeeding those produced by the magneto, wouldfire the gas.

It will be understood that numerous changes in the details may be made in the arrangement of the apparatus by any one skilled in the art, but I consider these changes and alterations asmere equivalents all of which I believe come within the scope of the appended claims.

Having thus described my invention what I claim is:

1. In an ignition system, the combination of a generating coil having primary and secondary windings, a main circuit breaker included in the circuit of said primary winding, a vibrator, a source of direct current, a second circuit breaker, a switch for connecting said last three mentioned elements in circuit with said primary win-ding through an element of the first mentioned circuit breaker, and a common means of a generating coil having primary and secondary windings, a circuit breaker included in the circuit of'said primary winding, a vibrator, a source of current, a second circuit breaker, a switch for connecting said last three mentioned elements in circuit with said primary winding through an element of the first mentioned circuit breaker and means for first opening the first mentioned circuit breaker and then closing the second breaker whereby interrupted current is sent through the primary winding for the purpose described.

3. In an ignition system, the combination of a generating coil having primary and secondary windings, a breaker box structure carrying a main circuit breaker having fixed and movable contact members and an auxiliary circuit breaker also having fixed and movable contact members, said primary Ill ,havmg a fixed contact of said main circuit breaker,

a vibrator having one terminal connected to one of the members of the auxiliary circuit breaker, a switch for connecting the other member of the auxiliary circuit breaker to the fixed member of the 'main'breaker, abattery adapted to be connected in circuit with said vibrator, and means for opening the main circuit breaker and then closing the auxiliary breaker whereby said vibrator sends current impulses throughsaid primary winding for the purpose set forth.

4. In an ignition system, a magneto having a generating coilconsisting of rimary and secondary windings, ried by said magneto, a main circuit breaker relatively fixed member and a movable member mounted on said breaker box, said members being in the normal operating circuit of said prlmary winding, an auxilia circuit breaker mounted on said brea er box,-a vibrator having a source of current connected thereto, said vibrator being connected to one of the members of said auxiliary circuit breaker, a switch connecting one of the members of said auxiliary circuit breaker to the relatively fixed member of the main circuit breaker, a cam driven by said magneto which first operates said main circuitbreaker and then said auxiliary circuit breaker, whereby said vibrator is connected in cirguit with said primary winding for the purposeset forth.

5.. In an ignition system for explosion engines, a spark producing coil having pri mary and secondarywindings, a pair of circuit controllers controlling difierent circuits,

. and a single means for operating said circuit controllers to first open one of said circuits and thentoclose a'circuit through a portion of the circuit that has just been opened including said primary winding.

6. In an ignition system for explosion engines, a -coil for producing sparks having primar and secondary windings, a circuit control er for interrupting a normal magneto circuit including said primary winda circuit controller for making and a battery vibrator circuit through said primary winding, and a single means for actuating both of said circuit controllers successively, whereby the magneto spark'is followed by the battery spark.

7 In an ignition system for explosion engines, a cam, a main circuit controller operated bysaid cam thereby to open a magneto ing, breaking primary circuit, a second circuit controller a breaker ox car-' battery and inductorium for operating operated by the first controller to close abattery circuit through said magneto primary circuit.

8. In an ignition system, a magneto having a generating coil with primary and secondary' windings, a main circuit controller, normally in circuit with said primary winds ing, a cam for operating said circuit controller, an auxiliary circuit controller operated by said cam, said auxiliary circuit controller controlling a vibrator circuit through said primary winding, and a switch for switching said auxiliary circuit controller into and out of said primary circuit.

9. 'In an ignition system,

a magneto havinga generating coil consisting of primary I and secondary windings, a main circuit controller permanently connected in circuit with said primary winding, a cam for operating said circuit controller, a second circuit controller operated by said cam, said second circuit controller operating to control the vibrator circuit through said primary winding.

10. Inan ignition system for explosion engines, a coilfor producing sparks in said engine, having primary and secondary windings, a pair of circuit controllers, and a single means for first operating one controller and then the other to open a circuit through said primary winding and then' closea separate exciting circuit through said. primary winding, for the purpose described.

11. In an ignition system, a magneto having a generating coil consisting of primary and secondary windings, a pair of circuit controllers, and a cam for operating both of said controllers, one after the other, whereby a circuit through said primary winding is opened and then closed, and a battery and vibrator adapted .to be connected in said last mentioned circuit. I

12. In an ignition system, a magneto having a generating coil consisting of primary andsecondary windings, two circuit controllers, each adapted to' control a circuit through said primary winding, a battery and inductorium, a switch to connect said to an element of each circuit controller and common means first one circuit controller and then the other whereby said battery and inductorium is brought into said primary Winding circuit after the first controller is operated.

In witness whereof, I a'flix my signature.

GEORGE L'. LANG. 

